Benchmarking calculations with spectroscopic accuracy of excitation energies and wavelengths in sulfur-like tungsten

Zhang, Chun Yu and Wang, Kai and Godefroid, Michel and Jönsson, Per and Si, Ran and Chen, Chong Yang (2020) Benchmarking calculations with spectroscopic accuracy of excitation energies and wavelengths in sulfur-like tungsten. Physical Review A - Atomic, Molecular, and Optical Physics, 101. 032509. ISSN 2469-9926 (https://doi.org/10.1103/PhysRevA.101.032509)

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Abstract

Atomic properties of S-like W are evaluated through a state-of-the-art method, namely, the multiconfiguration Dirac-Hartree-Fock method combined with the relativistic configuration-interaction approach. The level energies, wavelengths, and transition parameters involving the 88 lowest levels of W58+ (W lix) are calculated. We discuss in detail the relative importance of the valence- and core-valence electron correlation effects, the Breit interaction, the higher-order retardation correction beyond the Breit interaction through the transverse photon interaction, and the quantum electrodynamical corrections. The present level energies are highly accurate, with uncertainties close to what can be achieved from spectroscopy. As such, they provide benchmark tests for other theoretical calculations of S-like W and should assist the spectroscopists in their assignment and identification of observed lines in complex spectra.

  • Item type:Article
    ID code:82793
    Dates:
    Date
    Event
    17 March 2020
    Published
    25 February 2020
    Accepted
    Subjects:Science > Physics
    Department:Faculty of Science > Physics
    Depositing user: Pure Administrator
    Date deposited:14 Oct 2022 14:44
    Last modified:22 Apr 2024 00:53
    URI:https://strathprints.strath.ac.uk/id/eprint/82793
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